Binder construction



H. BERNHARD.

BINDER CONSTRUCTION.

APPLICATION FILED NOV-10. 1920.

1,384,507. Patented July 12, 1921.

UNITED STATES PATENT OFFIQE,

HIERONYMUS BERNI-IARD, ST. LOUIS, MISSOURI, A$SIGNOR 'IO GANNETT} 013 UNIVERSITY CITY, MISSOURI, AND ARCHIBALD on ST. Louis, MISSOURI.

coroner "B. 13. Lewis,

BINDER CONSTRUCTION.

To all 107mm may concern:

Be it known that I, Hmno'NYMUs BERN- rmno, a citizen of the United States, and a resident of city of St. Louis, State of: His souri, have invented an Improvement in Binder Construction, of which the following is a specification.

This invention relates to hinder construction, and with regard to certain more specific features, to a post construction for binding sheets into book form. The invention also applicable to "the binding of blocks of sheets detachably in covers.

Among the several objects of the inven= tion may be noted the provision of a simple and improved post; the provision of an inexpensive and compact book or binder structure, and the provision of a durable and ol'l'ective binder adapted to varying thicknesses and sizes of cover-members and varying thicknesses oi? sheets either in loose-leaf oi pad form. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the features oi construction and operation, combination of elements and arrangements oi parts which are exemplified in the structure hereinafter described and the scope of the application of which will be indicated in the following claims. I

In the accompanying drawings in which is shown one of various possible embodiments oi the invention,

Figure l is an elevation of the assembled post;

Fig. 2 is a bottom view of Fig. 1;

Fig. 3 is an elevation of the elements of the post separated from one another;

Fig. 4: is a plan of a book, showing two posts therein; and

Fig. 5 is a sectional elevation on the line 55 of Fig. l, showing the book closed.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring now more particularly to Figs. 1, and 3, there is illustrated at 1 a post, comprising a cylindrical member 3 internally threaded to receive a screw 5 the threaded end of which projects beyond the end of the cylindrical member, and receives a knurled nut or cap 7.

As shown in Fig. 3, the cylindrical. mem- Specification of Letters Patent. Patgnfpd J l 1 2 1 21 Application filed November 10, 1920. Serial No.

her is provided at one end with a recess 9 to receive a shoulder 11 on the nut T. shoulder gives a greater length of nut in contact with the screw without undue increase of the total length 01" the post.

W hen used in a book such as that illustrated at 13 in F d and 5, the screw 5 is inserted through an aperture in the back cover or cover-1nember l? of the book, the head of the screw being located on the outer side of the cover, which may be countersunk if desired, and the shank of the screw projecting inwardly into the book, that is, up-

wardly when the book is opened on a horizontal surface and is thus in the position indicated in Fig. st.

The cylindrical member 8 is then screwed onto the shank of the screw and is fixed tightly thereon, thus holding the cylindrical member and screw tightly against the inner and outer faces respectively of the back cover 17.

The paper 19 which may be in loose sheets or in pad form, is then inserted in the book by slipping it over the cylindrical member of the post, the paper being apertured as 21 for this purpose. lVhen the paper is in place on the cylindrical member the nut is screwed down upon the screw until the The lower face of the nut abuts against the end face of tee cylindrical member.

A book preferably has two of these post 7 constructions and in some instances more than two. two-post book is illustrated in F The :tront cover of the book need not be perforated or otherwise designed par" .ticularly for this post construction, and the book it is necessary simply to unscrew the nut 7 from each post, remove the paper,

insert any new paper, and thread each nut 7 again on its post. In this operation the screw and cylindrical member are in nowise disturbed.v

The several operations of assembling the post, applying paper, and removing paper, may-ordinarily be done with the fingers without the use of tools. If stronger pressure is desired in securing the cylindrical member to the screw, a screw-driver may be applied to the latter. As noted above, it is not necessary to take these two elements apart in removing or inserting paper in the book.

The construction of the present invention is automatically adapted to varying thicknesses of back cover-member, because it is not. essential. that the screw come exactly fiush with the upper surface of the cap 7. And minor departures from an exact flush relation does not affect the tightness with which the sheets are held, as such tightness is determined by-- the height of the cylindrical member 3. The post is useful with varying thicknesses and sizes of sheets, be cause theaggregate thickness of the sheets may equal the height of the cylindrical member 3, or may be less than such height, as in either case the papers are held in the book with equal security. The device is inexpensive to manufacture, readily applied to the book by comparatively unskilled labor, after shipment, and is not liable to de rangement through the rough handling that books oi this type frequently receive in service.

From the above, it will be seen that the several objects of the invention are realized, and other advantageous results attained.

As various possible embodiments might be made the above invention and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the acconn anying drawings is to be interpreted as illustrative and not in a'limiting sense. 7

' said screw and having a shoulder engaging in a recess in the cylindrical member.

3. ln'apparatus of the class described, 1n combination, a screw adapted to pass through a perforation in the back cover ot a book, a cylindrical member internally threaded to receive said screw and to cooperate with said screw so that said parts hold one another in position on said back cover and a knurled nutor cap internally threaded to receive said screw and hold said paper in place, said nut having a shoulder engaging a recess in the cylindrical member.

i. In apparatus of the class described, in combination, a book having a front and back cover flexibly united, a plurality of peritorations in the back cover adjacent the bind.- ing edge of the book, a plurality of posts in said perforations, each post comprising a screw passing through one of said perforations and into the book, a cylindrical member threaded on said screw, the screw and member holding one another in position on the back cover, sheets of paper in said book, having perforations through which said cylindrical members pass, and a knurled nut 01' cap threaded on each screw and abutting against the free end of the cylindrical member thereon and adapted to hold said paper in place in the book, said nut having a shoulder fitting in a recess in said member.

In testimony whereof I have signed my name to this specification this eighth day of November, 1920.

HIERONYMUS BERNHARI). 

